Composition of matter



Patented Qct. 11, 1932 UNITED STATES PATENT OFFICE -ELMER H. HYDE, or PITTSBURGH, PENNSYLVANIA, AssIoNon To AMERICAN TAP.

PRODUCTS COMPANY, 1Nc., A CORPORATION or DELAWARE comrosrTroN or MATTER No Drawing.

This invention relatesto compositions of matter and a process of preparing the same and more particularly to an improved disinfectant.

5 An object of the present invention is to provide anemulsion of tar acids or tar acid oils by means of a material obtained as a by-product in the manufacture of paper in the preparati. n of pulp, particularly by the soda or the su phate processes. This material I' a o 9- acid 011s.

I little or no furthertreatment. Since'it has the desired alkalinity, the expense and labor of further adding alkaline materials is eliminated.

75% by weight oftar acid oil containing tar acids are mixed with to 25% by weight of liquid resinate or enough to give a pH value of about 8. The materialsv may be mixed by means of mechanical or air agitafor use.

The following examples are given by way of illustration: Ewamplc ].A disinfectant having a coefiio'icnt of 2 plus in accordance with Rideal- Walker (1021 modification) may be prepared In preparing a-idisinfectant, about 7 0 to- Application filed Kay 2'2, 1930. Serial No. 456,298.

by mixing the following ingredients in the proportions given:

Per cent I by weight Tar acid oil (25% tar acids) 68 Liquid resinate '30 Castor oil soap 2 Emample 2.A disinfectant having a c0- efiicient of 3 plus may be prepared by mixing the following ingredients together in the proportions given: a r

Per cent I by weight Insecticide oil T 56.0 High boiling taracids 4.0 Water gas tar distillate 8.0 Liquid resinate 30.0 Castor oil soap 2.0

In the above examples, rather than adding the liquid resinate to the oily portions, it is preferable to add the oily portions such as the tar acids, insecticideoil, and water gas tar distillate, to the liquid resinate while stir ring and heating. The remaining ingredients may be added in any order. 7 I

Water is added to the above compositions to produce a disinfectant in the form of an emulsion. Any desired proportion of water may be used. The emulsion formed is of an exceptionally stable character;

ny animal or vegetable oil soap may be substituted for castor oil soap to aid in stabilizing emulsions; For instance soya bean oil soap or stearic acid soap may be used. Sulphonatedoils may also be used.

Any one or a mixture of two' or more tar acids may be used instead of. tar acid oil as for instance phenol, cresols, their homologues or their chlorinated products or other derivatives which have, bactericidal, action.

However, a cheaper product is obtained by using tar acid oil. For the purpose of fortifying a disinfectant, high boiling tar acids such as xylenols and the higher homologues may be included.

As shown in Example'2, a so-called insecticide oil may be added and may serve to supply'the main bulk of the tar acids. Insecticide oil is a coal tar distillate which contains about 25% to 35% phenol and its homologues and from which substantially all of the material which crystallizes out upon cooling to about 5 C. is removed.

The water gas tar distillate listed above may be added as a stabilizer and to lower the viscosity and the specific gravity of the ,finished dislnfectant. This distillate is com- /'paratively freefrom naphthalene and is a fraction obtained from water gas tar be-' tween 100 C. and 355 C.

With certain tar acids and by properly adjusting the proportions of materials used, disinfectants may be prepared having phenol co-efficients up to 25 plus.

' By thepresent method,the manufacture Y of disinfectants from tar acids is rendered very simple. The materials may be'mixed in any pro ortions and at room temperatures or hig er. Little or no solid materials I are required to be dissolved or handled, and

emulsification takes place readily. I claim as my invention:

A disinfectant emulsion consisting of tar 7 acid oil, 'watergas tar distillsite which is so comparatively free from naphthalene and which is obtained as a distillate from water gastar between 100 C. and 355 (3., water, and liquid resinate containing rosin acids, .fatty acids, lignin, caustic materials, and water.- y

In testimony whereof, I have hereunto subscribed my name this 26th day of May,

ELMER H. HYDE;

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